The Ko-ken RS2400M/12 is a 12-piece 1/4" Sq. Dr. Socket Set featuring 6-point sockets, designed for precision and durability. This set includes sockets in sizes 4, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 mm. Each socket is mounted on a 200mm rail for easy organization and accessibility. Ideal for detailed work, the set offers reliable performance and convenient storage with its well-organized rail system.